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forsale [732]
2 years ago
8

A substance is composed of one kind of atom and can’t be separated into simpler substances or converted into another substance b

y chemical pressure. Under which category would you classify this substance
Chemistry
1 answer:
Mumz [18]2 years ago
4 0
This would be classified as an element
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The notation for a particular nucleus is r3785b. in an electrically neutral atom. How many electrons are in orbit about this nuc
Serhud [2]

^{85}_{37}Rb has 37 electrons in the orbit about its nucleus.

<h3>How to write an atomic symbol with atomic mass and atomic number?</h3>

Atomic mass is the total number of neutrons and protons present in the nucleus of an element.

The atomic number is the total number of protons present in the nucleus of an element.

For writing an atomic symbol, atomic mass is written on the top left of the atomic symbol, and the atomic number is written on the downside of the left of the symbol.

^{Atomic mass}_{Atomic number}X

An electrically neutral atom is an atom that has an equal number of electrons as well as protons.

Thus from the above conclusion we can say that  ^{85}_{37}Rb has 37 electrons.

Learn more about Atomic mass and atomic number here:

brainly.com/question/3187640

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3 0
1 year ago
Answer soon please ​
erica [24]

Answer:

The sphere on the left as it has more mass.

Explanation:

Inertia is the resistance to changes of motion.

5 0
3 years ago
What is the amount of sediment a river carries
Butoxors [25]
The amount of sediments being carried has been increasing rapidly. There is no certain amount of number
8 0
3 years ago
Read 2 more answers
What properties applies to solids but not to liquids or gases?
qaws [65]
A higher density (besides H2O) as they have a more rigid structure, they have better conductive abilities than their liquid or gas forms. there are a couple more that i cannot think of at this moment in time.
4 0
3 years ago
Can someone help me solve this please 2.150 x 10 ^-12 dm / 5.02 x 10 ^-5dm^3
zavuch27 [327]

4.3 x 10⁻⁸dm⁻²

Explanation:

Problem:

                   \frac{2.150 x 10^{-12} dm }{5.02  x 10 ^{-5} dm^{3} }

 To solve this problem, we have apply the right rule of indices operation.

If we have an indices in the form;

 \frac{a^{n} }{b^{k} } = (\frac{a }{b } )^{n-k}

  Solving this problem:

   = \frac{2.15}{5.02}   x  10^{-12 -(-5})

   = 0.43 x 10⁻⁷

   = 4.3  x 10⁻¹ x 10⁻⁷

   = 4.3 x 10⁻⁸

for the units:

 \frac{dm}{dm^{3} }   = \frac{dm}{ dm x dm x dm} = \frac{1}{dm^{2} }  = dm^{-2}

  The solution is:  4.3 x 10⁻⁸dm⁻²

   

learn more:

long division brainly.com/question/1747117

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4 0
3 years ago
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